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JPA Criteria API Queries

> having_in_criteria_queries">GROUP BY / HAVING ... >, having_Expression_">having

Defining a JPA Entity Class

. an ordinary Java class that is marked (annotated) as having the ability to represent objects in the database. Conceptually this is similar to serializable classes, which are marked as having the ability

ObjectDB Object Database Features

_with_having">HAVING and aggregates

javax.persistence.criteria.Subquery

> having clause predicate having_Predicate_" title="Method of javax.persistence.criteria.Subquery">having ... restriction predicates. Replaces the previously added having restriction(s), if any

javax.persistence.criteria.CriteriaQuery

: having clause predicate having_Predicate_" title="Method of javax.persistence.criteria.AbstractQuery">having ... predicates. Replaces the previously having added restriction(s), if any. If no restrictions are specified

FROM clause (JPQL / Criteria API)

, HAVING, IN, INDEX, INNER, IS, JOIN, KEY, LEADING, LEFT, LENGTH, LIKE,LOCATE, LOWER, MAX, MEMBER, MIN

JPA Query Expressions (JPQL / Criteria)

Query expressions are the foundations on which JPQL and criteria queries are built. Every query consists of clauses - SELECT, FROM, WHERE, GROUP BY, HAVING and ORDER BY, and each clause consists of JPQL / Criteria query expressions

DELETE Queries in JPA/JPQL

, and cannot include the GROUP BY, HAVING and ORDER BY clauses. A WHERE clause, which is essential

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[ODB1] Chapter 8 - ObjectDB Server

. If a change is found, the new configuration is loaded automatically without having to restart